Construction of Thermo-setting Phenolic Resin Containing Sliding Unit Segments

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We firstly tried to synthesize viologen polymers with high molecular weights. However, due to the low reactivity of the cationic reaction, the degree of polymerization (DP) was found to be 8-10. Thus, we synthesized the other pillar[5]arene-based polyrotaxanes containing polyTHF. By capping polyTHF end groups with bulky stoppers in liquid pillar[5]arene carrying 10 triethylene oxide chains, new nonionic polyrotaxanes consisting of polyTHF and pillar[5]arene wheels carrying 10 triethylene oxide chains could be synthesized.